i saw the raws for this and apparently they keep their underwear on? damn in the novel they get so freaky and it's so detailed. idk if anyone knows korean and can tell me if they crack in the manhwa or if it's implied, but in the novel they DEFINITELY do it all the way, even when the brother walks in for a bit and leaves, the top is literally inside the bottom like LOL
something like sayonara alpha or nii-chan/ haradas works? i really wanna be traumatized rn
http://www.mangago.me/read-manga/kusatta_rasen/
http://www.mangago.me/read-manga/ibitsu_no_kakera/
http://www.mangago.me/home/mangalist/917661/ i have more in this list, is small i just started it today but maybe you can find something :3
juju we will wait for u queen
yes please juju we need u